Improvement in heel-burnishing machines



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B. W. GLIDDEN. Heel-Burnishing Machine s. N0. 143,690,v v Patented Oct-14,1873.

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GwWJGLIDDEN} HeeI-Burnishing Machines.

No 143,690, Patented Oct. 14,1873.

opera-tin FIGE.

CHARLES IV. GLIDDEN, OF LYNN, ASSIGNOR TO JAMES IV. BROOKS, ,TRUSTEE, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN HEEL-BURNISHING MACHINES.

Specification formingpart of Letters Patent No. 143,690, dated October 1 1, 1873 application filed August 2-5, 1873.

mechanism by which the heel of a boot or shoe may be burnished through the instrumentality of two burnishing-tools,'running in opposite directions and acting intermittently, one tool passing over the entire curved sin-face to be burnisheddirom one side to the opposite side thereof, and the other tool then passing in like manner over such curved edge, but in theopposite direction. My invention consists, primarily and broadly, in a heel-burnishing machine having two separate and independent burnishers or burnishing-tools thus The drawing represents a machine embodying the-invention.

Figure 1 shows the machine in side elevation. Fig. 2 is a plan of the machine. Fig. 3 shows the burnishing-tools in front elevation.

In this machine the boot or shoe is supposed to be jacked in stationary position for the ac tion of the burnishing mechanism 5 and for this purpose I show a clamp or tread-plate, u, having a seat, 1), upon which rests the heel-breast,

and a last-pi11, c, the clamp-plate being shown as fixed upon the end of a shaft, 51, and the pin, 0, as jointed to an arm extending from a slide, 0. NVhen the slide is drawn back the pin may be swung up and the boot, or shoe placed upon it or removed from 1t, and when the pin is moving down (the boot or shoe being upon it) the slide is thrown forward, bringing the heel-seat against the clamp-plate a.

Upon the shaft (1 are two sleeves or tubular shafts, fg, and at the inner end of the sleeve f is a frame, h, that carries a burnisher, a,

while at the inner end of the sleeve 9 is a frame, is, that carries a burn1sher,'l, the sleeve fextending through and beyond the sleeve 1 and the frame. The burnisher t is directly jointed to the end of a radial slide, 122, which moves in the head of another slide, a, that moves in the main part of the frame extending from the sleeve f,- and the burnisher Z, in a similar manner, is jointed at the inner end of a radial slide, 0, moving in the head of another slide, 1), that moves in the main part of the frame 7c, extending from the sleeve 9. Each burnishenslide m 0 is pressed inward by the stress of a suitable spring, j, and the stress of such spring is increased at'proper times by A a slide-block, operated by a curved guide-rail,

q, each block having a roll, 8, that travels against the rail. The tubular shafts f g are intermittently rotated in opposite directions, and in such rotations the overhanging frame It passes inside of the overhanging frame 7:. In their respective rotative movements one burnisher is brought against one side of the heel at the corner thereof, and the frame with which such burnisher is connected ismoved rota-tively, the burnisher being pressed against the heel until it has passed over the whole length of the curved edge of the heeL Then the other burnisher is brought into contact with the side of the heel over which the first burnisher last passed, and is held against the curved surface of the heel until it has revolved over the whole curved surface thereof moving, in the opposite direction to the other tool. As the burnisher surfaces must revolve in the same general plane, each .burnisher in turn makes way for the other, and their respective movements are produced as follows:

The lesser frame It is fixed to the end of its sleeve, and the sleeve bears a bevel-pinion, 1, which is intermittently rotated by a segme1 it bevel-gear, u, on a driving-shaft, c. When the burnisher z is beneath the heel it is held back by the curved surface of a stationary cam, a", acting against a roll, m, on the slide plate 12, and as the gea" it turns the frame It the roll rides on the cam-plate, and the slide a, with the burnisher, moves forward until, reaching a horizontal position, the burnisher comes against the heel-edge, the roll 8 of the burnisher-slide passing under the curved rail g, which holds the slide forward, or compresses the springj, so that the burnisher is forced hard against the heel-edge. When the burnishing-tool has passed beyond the heel the roll a: strikes the cam-plate 1, and the burnisher passes under the plate a, and is drawn back by the cam-plate, so that it stands back of the sole, as seen in Fig. 4.. Reaching this position, the gear-segment passes beyond the pinion t, and into engagement with another pinion, 20, at the end of the other sleeve, 9, and at the opposite side of the gear-wheel 2. During the movement of the first burnisher the other burnisher is stationary under the shaft d, as seen at Figs. 4 and 5, and as the segment gear u leaves the pinion t (the burnisher being thenbeneath the heel-plate) the gear engages with the pinion 10 upon the other sleeve, g. The frame 70 connected with this sleeve is a sliding frame sliding on a guideplate, a fixed upon the sleeve g. From this plate extends an arm, I), carrying at its end a gear-pinion, 0 to which is fixed a crankarm, 07?. From this arm a crank-pin, 0 extends into a slot, f at the end of the frame opposite to the burnisher. 'As the sleeve rotates the pinion c is brought into contact with one of two stationary gear-racks, g and its engagement therewith turns the crank and causes it to impart a radial movement to -the burnisher-frame. In the position seen in Figs. 1 and 5 the burnisher-slide p is held back by a cam-plate, h acting upon a roll, 1?, connected with the slide; and as the frame begins to rotate the cam lets the slide move forward, (by the stress of the spring V2,) and this forward movement brings the roll 8 into line with the curved guide-rail q, while when the pinion 0 next strikes the gear-rack g the engagement of the pin and rack causes the frame to slide radially until the burnisher is brought into contact with the boot-heel, which contact takes place before the pinion passes out of engagement with the gear-rack, the contact being then maintained by the curved rail q. As the burnisher reaches the opposite side of e the heel at the breast thereof, (having passed over the whole length of itscurved edge,) the pin ion 0 reaches the opposite gear-rack 1 which causes the frame to be thrown radially outward, and the roll comes into contact with the cam-plate 7L2, movement against which draws draws back the burnisher, so that when the gear-segment uhas brought the burnisher frame to a vertical position beneath the shaft (1 (at which position the frame stops by reason of the segment a passing the pinion w) the frame k and burnisher I will be so located as to permit the other frame and its burnisher to pass by the frame. By these means both burnishers act upon the curved heel-surface in opposite directions, and by their rapid rotation and pressure against such surface they quickly effect the burnishing.

To enable the whole width of heel-edge to be properly burnished, the shaft 01 may have an end movement to move the shoe imder the burnisher, and for this purpose the shaft is whose other arm is connected, by a lever connection, with a pedal, 1

When the shoe is jacked in position the slide 0 is pressed toward the shaft d, and the heel will then be in position for the burnisher to burnish the upper part of the heel-edge. By pressing upon the pedal 1 during the burnishing operation the shaft 61 and the jacked shoe are moved back, thereby bringing the burnisher into action upon the bottom part of the heel-edge. By alternately pressing the slide forward by hand and bringing it back by pressure of the foot upon the treadle, the burnishers will have a lateral movement across the heel-edge, as well as longitudinal movements against it.

I claim- 1. In combination with the mechanism for jacking the boot or shoe in position, the burnishers i l, acting alternately and in opposite directions against the heel-edge, substantially as described.

2. In combination with the heel-plate a, the hinged jack or last-pin c, jointed to the slide 0, substantially as described.

3. The burnisher-frames h k, each having a m 12, substantially as shown and described.

4.. In combination with the rotating binnishcrs, the guide-rail q operating to press or described.

5. In combination with the rotating burnishers, the cam-plates r h for drawing back the burnishers.

6. In combination with theburnisher-frame 7c, the guide-plate a, pinion c crank 13 d, and gear-racks 9 operating to intermittently actuate the frame, substantially as described.

7. In combination with the biu'nisher-framcs h 7.", the sleeves f g, pinions w t, and gear-segment u.

Executed this 8th day of August, A. D. 1873.

O. W. GLIDDEN.

\Vitnesses FRANCIS GOULD, M. W.- FROTHINGHAM.

shown as jointed to one arm of a lever, 7.1

yielding or sliding burnisher, l or i, and slides keep forward the burnishers, substantially as 

